U0238

Lost Communication With Digital Audio Control Module D

Severity

✅ Low

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Audio system doesn't work
No sound from speakers
Voice control is not responding
Media screen won't turn on

Causes

Digital Audio Module Fault
Broken CAN bus wires
Corroded or oxidized connectors
Module power problems
Software error

How to Fix

CAN bus diagnostics using an oscilloscope
Checking the power and ground of the audio module
Inspect connectors and wiring
Reflashing or replacing the audio module
Checking fuses

Related codes

U0237 U0239 U0240